Battery production line

Abstract

The utility model provides a battery production line which comprises a transmission module used for transmitting batteries, the transmission module comprises a main transmission line and a branch transmission line, and a sealing nail assembling module, a sealing nail welding module, a visual detection module, an image acquisition module and a helium detection module are sequentially arranged along the main transmission line; the sealing nail assembling module is used for placing a sealing nail into a liquid injection hole; the visual detection module detects the welding quality of the sealing nails; the image acquisition module acquires an image of the battery; the helium detection module detects the sealing performance of the battery; the marking module is used for receiving a marking signal; the branch transmission line is located between the image acquisition module and the helium detection module, is parallel to the main transmission line and is used for transmitting a predetermined tray, the predetermined tray is marked by the marking module or contains marked batteries, unqualified batteries on the branch transmission line are sorted out, and qualified batteries flow back to the main transmission line along with the tray and continue to be transmitted to the helium detection module; the technical problem of low battery production efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to battery processing technical field, concretely relates to a battery production line. BACKGROUND

[0002] In the production process of lithium ion battery and other batteries, electrolyte is injected through the liquid injection hole, after the liquid injection is completed, the sealing nail is welded to the liquid injection hole for sealing, and then helium detection is carried out to detect whether the sealing is qualified. In the current welding sealing nail and helium detection process, the layout adopts the mode of realizing through the feeding and discharging of the machine table and the logistics line.

[0003] The specific process is as follows: the logistics line carries the battery to the position, the sealing nail welding feeding manipulator carries the battery to the sealing nail welding machine table, after the sealing nail welding machine table works, the qualified battery is detected by the visual detection, the sealing nail welding discharging manipulator puts the qualified battery on the logistics line to flow out, the logistics line flows into the helium detection machine feeding position, the helium detection machine feeding gripper detects the battery helium, and after detection, the helium detection discharging manipulator carries out the logistics line. This mode is gripped for three times, and the transportation efficiency of the battery is reduced. In addition, the sealing nail welding machine discharging position also includes a manual inspection position, when the worker takes out the defective battery in the manual inspection position, the subsequent normal battery will be blocked until the worker completes the action. The manual inspection position becomes the bottleneck process and reduces the work efficiency. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of battery production line, battery pack and electronic device to improve the technical problem of low battery production work efficiency.

[0005] To achieve the above object and other related purposes, the utility model provides a kind of battery production line, the battery production line includes the transmission module for transmitting battery, transmission module includes main transmission line and branch transmission line, multiple batteries are contained in tray transmission, sealing nail assembly module, sealing nail welding module, visual detection module, image acquisition module, helium detection module and marking module are sequentially provided along the transmission path of main transmission line;Sealing nail assembly module is used to assemble sealing nail to the liquid injection hole of battery;Sealing nail welding module is used to weld sealing nail to the liquid injection hole;Visual detection module is used to detect sealing nail welding quality, and mark the unqualified battery;Image acquisition module is used to acquire the image of battery, and image at least includes sealing nail, liquid injection hole, the weld between sealing nail and liquid injection hole;Helium detection module is used to detect the sealing of the battery of sealing nail welding qualification;Marking module is used to receive marking signal, and according to marking signal, mark the unqualified battery or the tray containing unqualified battery;Branch transmission line is located between image acquisition module and helium detection module, and is parallel with main transmission line, for transmitting predetermined tray, predetermined tray is marked by marking module or contains marked battery, and the unqualified battery on branch transmission line is sorted out, and the qualified battery flows back to main transmission line with tray and continues to transmit to helium detection module.

[0006] In the battery production line example of the utility model, the sealing nail assembly module comprises: a fixed seat, an X-axis moving mechanism, a Z-axis moving mechanism, a plurality of feeding mechanisms and a control system; the X-axis moving mechanism comprises an X-axis drive and an X-axis moving plate, the X-axis drive is installed on the fixed seat, the X-axis moving plate is in transmission connection with the X-axis drive, and the X-axis moving plate is in sliding connection with the fixed seat; the Z-axis moving mechanism comprises a Z-axis drive and a Z-axis moving plate, the Z-axis drive is arranged on the X-axis moving plate, the Z-axis moving plate is in transmission connection with the Z-axis drive, and the Z-axis moving plate is in sliding connection with the X-axis moving plate; the plurality of feeding mechanisms are arranged on the Z-axis moving plate, the feeding mechanism comprises an X-axis fine adjustment device, a Y-axis fine adjustment device and a suction nozzle, the Y-axis fine adjustment device is connected to the Z-axis moving plate, the X-axis fine adjustment device is arranged on the Y-axis fine adjustment device, and the suction nozzle is arranged on the X-axis fine adjustment device; alternatively, the X-axis fine adjustment device is connected to the Z-axis moving plate, the Y-axis fine adjustment device is arranged on the X-axis fine adjustment device, and the suction nozzle is arranged on the Y-axis fine adjustment device; the control system is in electric connection with the X-axis moving mechanism, the Z-axis moving mechanism and the plurality of feeding mechanisms.

[0007] In the battery production line example of the utility model, the Y-axis fine adjustment device comprises: a Y-axis fine adjustment mounting plate, a Y-axis fine adjustment drive, a Y-drive shaft, a Y-axis eccentric assembly and a Y-axis fine adjustment moving plate; the Y-axis fine adjustment mounting plate is connected with the Z-axis moving plate; the Y-axis fine adjustment drive is arranged on the Y-axis fine adjustment mounting plate; the Y-drive shaft is in transmission connection with the Y-axis fine adjustment drive and passes through the Y-axis fine adjustment mounting plate; the Y-axis eccentric assembly is in transmission connection with the Y-drive shaft; the Y-axis fine adjustment moving plate is in sliding connection with the Y-axis fine adjustment mounting plate and can slide relative to the Y-axis fine adjustment mounting plate with the rotation of the Y-axis eccentric assembly.

[0008] In the battery production line example of the utility model, the X-axis fine adjustment device comprises: an X-axis fine adjustment mounting plate, an X-axis fine adjustment drive, an X-drive shaft, an X-axis eccentric assembly and an X-axis fine adjustment moving plate; the X-axis fine adjustment mounting plate is arranged on the Y-axis fine adjustment moving plate; the X-axis fine adjustment drive is arranged on the X-axis fine adjustment mounting plate and is located on the same side of the Y-axis fine adjustment moving plate; the X-drive shaft is in transmission connection with the X-axis fine adjustment drive and passes through the X-axis fine adjustment mounting plate; the X-axis eccentric assembly is connected with the X-drive shaft; the X-axis fine adjustment moving plate is in sliding connection with the X-axis fine adjustment mounting plate and can slide relative to the X-axis fine adjustment mounting plate with the rotation of the X-axis eccentric assembly.

[0009] In the battery production line example of the utility model, the marking module comprises a display and a first button for marking unqualified batteries that are not recognized by the visual detection module, the unqualified batteries marked by the first button flow to the branch conveying line, and the display is used for displaying the images of the batteries collected by the image acquisition module.

[0010] In the battery production line example of the utility model, the main transmission line comprises a first section and a second section which are connected to each other, the first section passes through a sealing pin assembling module, a sealing pin welding module, a visual detection module and an image acquisition module, and the second section passes through a helium detection module.

[0011] In the battery production line example of the utility model, an identification code is arranged at a corresponding position of each battery or tray, the marking module comprises a second button for marking unqualified batteries which are not recognized by the visual detection module, a code scanning module is further arranged upstream of the sealing pin assembling module, the first section passes through the code scanning module, the unqualified batteries marked by the second button are transmitted back to the first section through the second section, and continue to pass through the code scanning module, the visual detection module and the image acquisition module and then return to the second section, or pass through the code scanning module and the visual detection module and are detected as unqualified batteries by the visual detection module.

[0012] In the battery production line example of the utility model, the battery production line further comprises a discharging module, the discharging module is used for taking out the batteries qualified by the helium detection, a transfer mechanism is arranged between the discharging module and the helium detection module, and the transfer mechanism is used for transferring the tray and the batteries in the tray after the helium detection to the discharging module.

[0013] In the battery production line example of the utility model, the transmission module further comprises a tray backflow transmission line for transmitting empty trays, the tray backflow transmission line is connected to the beginning end of the first section and the discharging module, and the tray backflow transmission line passes through the feeding station to feed the batteries to be assembled into the tray.

[0014] In the battery production line example of the utility model, the tray backflow transmission line comprises a first upward backflow line, a downward backflow line and a second upward backflow line, the first upward backflow line is connected to the discharging module, the second upward backflow line is connected to the beginning end of the first section, a first elevator is arranged between the first upward backflow line and the downward backflow line, and a second elevator is arranged between the downward backflow line and the second upward backflow line.

[0015] The battery production line of the utility model is provided with a main transmission line for transmitting batteries, and a sealing pin assembling module, a sealing pin welding module, a visual detection module, an image acquisition module, a marking module and a helium detection module are sequentially arranged on the transmission path of the main transmission line, so that the batteries complete the processes of sealing pin assembling, sealing pin welding, visual detection, manual visual inspection and marking and helium detection in the transmission process of the main transmission line, and the process of carrying the batteries by a mechanical hand is omitted, on the one hand, the carrying time is saved, the production efficiency is improved, on the other hand, the demand for working space is reduced, and on the other hand, the possibility of appearance damage of the batteries in the process of being grabbed can be avoided.

[0016] In addition, a branch transmission line is arranged in parallel with the main transmission line between the image acquisition module and the helium detection module, that is, the branch transmission line is separated from the main transmission line after the image acquisition module, the tray containing the battery with unqualified sealing nail welding flows into the branch transmission line for transmission, the unqualified battery can be sorted out manually or mechanically during the transmission of the tray in the branch transmission line, and then the qualified battery is combined with the tray into the main transmission line for subsequent processes. The arrangement realizes that the transmission of the qualified battery and the sorting of the unqualified battery can be carried out at the same time, reduces the influence and limitation of the sorting of the unqualified battery on the production rhythm, and improves the work efficiency in the battery production process. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other embodiments can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0018] Figure 1 It is a plane schematic view of a battery production line of the present application;

[0019] Figure 2 It is a three-dimensional schematic view of a battery production line of the present application;

[0020] Figure 3 It is a whole structure schematic view of a sealing nail assembly module of the battery production line of the present application;

[0021] Figure 4 It is a structure schematic view of the sealing nail assembly module of the battery production line of the present application after removing the feeding mechanism;

[0022] Figure 5 It is a structure schematic view of the feeding mechanism of the sealing nail assembly module of the battery production line of the present application;

[0023] Figure 6 It is an explosion view of the feeding mechanism of the sealing nail assembly module of the battery production line of the present application;

[0024] Figure 7 It is a structure schematic view of an X-axis eccentric assembly and a Y-axis eccentric assembly of the battery production line of the present application;

[0025] Figure 8 It is a structure schematic view of another example of the X-axis eccentric assembly and the Y-axis eccentric assembly of the battery production line of the present application;

[0026] Figure 9The utility model discloses a structure schematic drawing of one example of X axis eccentric assembly and Y axis eccentric assembly in the battery production line.

[0027] Figure 10 The utility model discloses a structure schematic drawing of the first elevator or the second elevator in the battery production line.

[0028] Element number explanation

[0029] 10, battery;20, tray;100, transmission module;110, main transmission line;111, first subsection;112, second subsection;120, branch transmission line;140, tray reflow transmission line;141, first uplink reflow line;142, downlink reflow line;143, second uplink reflow line;144, first elevator;145, second elevator;200, code scanning module;300, cleaning module;400, sealing pin assembly module;410, fixed seat;420, X axis moving mechanism;421, X axis moving plate;430, Z axis moving mechanism;431, Z axis drive;432, Z axis moving plate;433, limit;440, feeding mechanism;441, Y axis fine adjustment device;4411, Y axis fine adjustment drive;4412, Y axis fine adjustment mounting plate;4413, Y drive shaft;4414, Y axis eccentric assembly;44141, first cam;44142, first eccentric wheel;44143, first bearing;44144, first eccentric bearing;4415, Y axis fine adjustment moving plate;44151, first through hole;4416, Y axis fine adjustment sliding assembly;44161, first guide rail;44162, first sliding block;442, X axis fine adjustment device;4421, X axis fine adjustment drive;4422, X axis fine adjustment mounting plate;4423, X drive shaft;4424, X axis eccentric assembly;44241, second cam;44242, second eccentric wheel;44243, second bearing;44244, second eccentric bearing;4425, X axis fine adjustment moving plate;44251, second through hole;4426, X axis fine adjustment sliding assembly;44261, second guide rail;44262, second sliding block;443, suction nozzle;500, sealing pin welding module;600, visual detection module;700, image acquisition module;800, helium detection module;900, discharging module;1000, material taking module;1100, artificial visual inspection battery pull belt;1200, helium detection battery pull belt;1300, maintenance passage entrance and exit;1400, storage module;1500, marking module;1510, display. DETAILED DESCRIPTION

[0030] The following embodiments and features together with advantages thereof will be best understood from the following detailed description of the embodiments given by way of example only, which is made merely for purposes of illustration and without any intention to limit the application. Other features and advantages of the present application will become apparent from the following detailed description of the application and from the drawings. The detailed description of the application is made with reference to the accompanying drawings. The application is not limited to the embodiments disclosed but is applicable to whatever variations coming within the scope of the application. The embodiments described below are only used to explain the principles of the present application and to enable a person skilled in the art to understand the application. The embodiments disclosed in the specification and drawings of the present application are intended to explain the preferred embodiments of the present application and are not used to limit the scope of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The materials, methods, and examples provided herein are illustrative only and are not intended to be limiting on the scope of the application. Other features and advantages of the present application will become apparent from the following detailed description of the application and from the drawings.

[0031] When the embodiments give a numerical range, it should be understood that, unless otherwise stated by the present application, each numerical range of two endpoints and any one numerical value between the two endpoints can be selected. Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as the present technical field of the skilled in the art and the description of the present application, and any method, equipment and material of the prior art similar or equivalent to the method, equipment and material of the embodiments of the present application can be used to realize the present application.

[0032] It should be understood that the terms such as "up", "down", "left", "right", "middle" and "one" in the specification are only for the convenience of clear description, and are not intended to limit the scope of the present application, and the change or adjustment of the relative relationship without substantial change of the technical content is also regarded as the scope of the present application.

[0033] Please refer to Figures 1 to 10 The present application provides a battery production line, which comprises a conveying module 100 for conveying batteries 10, the conveying module 100 comprising a main conveying line 110 and a branch conveying line 120 parallel to the main conveying line 110, a tray 20 containing unqualified batteries 10 subjected to seal nail welding flows into the branch conveying line 120 for conveying, and the tray 20 can be manually or mechanically sorted out unqualified batteries 10 during conveying in the branch conveying line 120, and then the qualified batteries 10 are combined with the tray 20 and enter the main conveying line 110 for subsequent processes. The arrangement realizes that the conveying of qualified batteries 10 and the sorting of unqualified batteries 10 can be carried out simultaneously, reduces the influence and limitation of the sorting of unqualified batteries 10 on the production rhythm, and improves the work efficiency.

[0034] Please refer to Figure 1 and Figure 2In the battery production line example of the utility model, the battery production line comprises a main conveying line 110 and a branch conveying line 120, the main conveying line 110 and the branch conveying line 120 have various forms, for example, can be a belt assembly line, a plate chain line, a multiple-speed chain, a mesh belt line, a suspension line and a roller assembly line, as long as the transmission of the battery 10 can be realized, and no limitation is made to this. It can be understood that the structure of the main conveying line 110 and the branch conveying line 120 generally comprises a traction member, a bearing member, a driving device, a tensioning device, a turning device and a supporting member, and the like, which will not be repeated here. In order to ensure the stability of the battery 10 transmission process, the plurality of batteries 10 is placed in a tray 20, and then the plurality of trays 20 is placed on the main conveying line 110 and the branch conveying line 120 for transmission. In the embodiment, four accommodating grooves for placing the battery 10 are arranged in each tray 20, one tray 20 can place four batteries 10, and the tray 20 can realize the protection, fixation and positioning of the battery 10, so as to reduce the processing difficulty and improve the processing efficiency.

[0035] Please refer to Figure 1 and Figure 2 , the transmission path of the main conveying line 110 is sequentially provided with a sealing pin assembly module 400, a sealing pin welding module 500, a visual detection module 600, an image acquisition module 700 and a helium detection module 800. In addition, the battery production line further comprises a marking module 1500.

[0036] Please refer to Figure 1 and Figure 2 , the sealing pin assembly module 400 is used for placing the sealing pin into the liquid injection hole of the battery 10. Specifically, the battery 10 after liquid injection is conveyed to the working position of the sealing pin assembly module 400 along the main conveying line 110, the sealing pin is sent to the vicinity of the working position of the sealing pin assembly module 400 through a pin feeding mechanism, and the sealing pin assembly module 400 grabs the sealing pin on the pin feeding mechanism and places it on the corresponding liquid injection hole of the battery 10. The structure of the sealing pin assembly module 400 has various forms, as long as the sealing pin can be grabbed, transferred and accurately placed in the corresponding liquid injection hole, the grabbing mode includes suction, clamping, gripping or hooking, but is not limited thereto.

[0037] It should be noted that, in order to ensure the cleanliness of the welding area and improve the reliability of welding, a cleaning module 300 is further arranged before the sealing pin assembly module 400, the cleaning module 300 is used for cleaning the liquid injection hole to ensure the cleanliness of the welding area, and laser, dry ice cleaning and dry gas blowing cleaning can be used.

[0038] Please refer to Figure 1 and Figure 2The sealing nail welding module 500 is used for welding the sealing nail to the liquid injection hole. The sealing nail welding module 500 can be any device capable of firmly welding the sealing nail and the liquid injection hole. The welding mode can be pulse laser welding, fiber laser welding or continuous composite laser welding, etc.

[0039] Please refer to Figure 1 and Figure 2 The visual detection module 600 is used for detecting the welding quality of the sealing nail and marking the unqualified battery 10. Visual detection is a process of detecting objects by using machine vision technology. The visual detection module 600 includes image acquisition, feature extraction and description, pattern recognition and comparison, and result analysis. Specifically, the image acquisition captures the image of the battery 10 to be detected by using a camera or other image sensor. Preferably, after the image acquisition is completed, the image is denoised, the contrast is enhanced, and the light is corrected, so as to improve the accuracy of subsequent processing. Feature extraction and description is to extract key information from the pre-processed image and form a description. Pattern recognition and comparison is to recognize and compare the extracted features with the features of the defective battery 10 learned and recorded by the previous visual detection. Result analysis is to analyze the comparison result to determine whether the battery 10 is qualified or unqualified. In this embodiment, the visual detection adopts CCD (Charge-Coupled Device) detection technology. The image is captured by a CCD industrial camera, and then the image is analyzed by using image processing technology. This detection technology has high precision, high efficiency and high stability, and has the effects of shortening the detection time, improving the production efficiency and saving the labor cost.

[0040] Further, the battery 10 that fails the visual detection is marked. The marking method can be various, such as physical marking, electronic marking or visual feedback, etc. In this embodiment, the electronic marking method is used to mark the unqualified battery 10. Specifically, an identification code is arranged on each battery 10 or the accommodating groove of the tray 20, so as to electronically record the corresponding battery 10 or its position, thereby facilitating the subsequent sorting process.

[0041] Considering that the machine vision detection has the phenomenon of missing detection due to the limited recorded defect features, the image acquisition module 700 and the marking module 1500 are further arranged after the visual detection module 600. Please refer to Figure 1 and Figure 2The image acquisition module 700 is used to acquire images of the battery 10, and the images at least include the sealing nail, the liquid injection hole, and the welding seam between the sealing nail and the liquid injection hole, and are provided to the operator for judging the welding quality. The marking module 1500 is used to further detect the battery 10 considered qualified after visual detection, continue to detect the sealing nail welding quality through the images acquired by the image acquisition module 700, the module is manual detection, and mark the unqualified battery 10, so as to facilitate the subsequent sorting processing. It should be noted that the process sequence of the marking module 1500 is located between the image acquisition module 700 and the helium detection module 800, but can be arranged at any position in the battery production line. In some embodiments, the marking module 1500 is located between the image acquisition module 700 and the helium detection module 800, as shown in the figure, and in some other embodiments, the marking module 1500 can also be arranged in the office, or the marking module 1500 is realized by a mobile device.

[0042] Please refer to Figure 1 and Figure 2 The helium detection module 800 is used to detect the sealing performance of the battery 10 with qualified sealing nail welding, to ensure that the battery 10 will not leak gas in the subsequent use process, so as to ensure the safety performance of the battery 10; the helium detection module 800 usually adopts vacuum method for detection. First, the battery 10 is placed in the detection equipment, and then the battery 10 is evacuated, and the external vacuum source is closed after reaching the set negative pressure value. Then, the air tightness detector is used to detect the air tightness inside the battery 10. If there is leakage at the welding position of the battery 10, helium will leak from the inside of the battery 10 to the outside, and the number of helium molecules is detected to judge whether the battery 10 leaks. The helium detection module 800 can be obtained by commercial means, and its specific structure will not be described here.

[0043] Further, in order to realize the continuity and automation of the collaborative work between the sealing nail assembly module 400, the sealing nail welding module 500, the visual detection module 600, the image acquisition module 700, the marking module 1500 and the helium detection module 800, the battery production line further comprises a control system (not shown in the figure), the control system first acquires the image of the target battery 10, and then determines the assembly position of the sealing nail. The control system controls the sealing nail assembly module 400 to obtain the sealing nail from the nail supply mechanism, and places the sealing nail at the position of the target liquid injection hole according to the determined assembly position. The control system controls the sealing nail welding module 500 to perform welding operation according to the preset welding parameters. The tray 20 after welding passes through the visual detection module 600, and the visual detection module 600 feeds back the detection result to the control system. The control system determines whether the product is qualified or needs to be qualified according to the detection result. If unqualified, the unqualified battery 10 can be carried out of the main transmission line 110, and after passing through the visual detection module 600, the battery 10 is conveyed to the image acquisition module 700 along with the main transmission line 110 to acquire the image of the battery 10 qualified in the previous process. The operator can recheck the welding quality of the battery 10 according to the image acquired by the image acquisition module 700, and mark the unqualified product by using the marking module 1500. The helium detection equipment tests the sealing performance of the battery 10, and the helium detection result is fed back to the control system. If the battery 10 is qualified, the battery 10 is taken out of the tray 20 and enters the next process; if the battery 10 is unqualified, the unqualified battery 10 is sorted out and uniformly processed. The control system realizes the fully automated production process from the assembly of the battery 10 to the detection through the close cooperation with each module, improves the production efficiency and product quality, and the specific composition of the control system can refer to the prior art, and details are not repeated here.

[0044] Please refer to Figure 1 and Figure 2 The branch transmission line 120 is located between the image acquisition module 700 and the helium detection module 800, and is parallel to the main transmission line 110, that is, the branch transmission line 120 is separated from the main transmission line 110 after the image acquisition module 700 acquires the image and the marking module 1500, the tray 20 containing the battery 10 with unqualified sealing nail welding is transmitted through the branch transmission line 120, and the operator or the mechanical hand can sort out the unqualified battery 10 during the transmission process. The qualified battery 10 flows back to the main transmission line 110 along with the tray 20 to continue the subsequent process. This setting realizes that the transmission of the qualified battery 10 and the sorting of the unqualified battery 10 can be carried out at the same time, reduces the influence and limitation of the sorting of the unqualified battery 10 on the production rhythm, and improves the work efficiency.

[0045] Please refer to Figure 1 and Figure 2It should be noted that the number of the cleaning module 300, the sealing pin assembly module 400, the sealing pin welding module 500, the visual detection module 600 and the helium detection module 800 is not limited, and can be one or multiple, and can be adaptively designed according to the actual production rhythm requirement. For example, in the embodiment, the cleaning module 300, the sealing pin assembly module 400, the visual detection module 600 and the helium detection module 800 are one, and the sealing pin welding module 500 is provided with two.

[0046] Please refer to Figures 1 to 9 In the battery production line example of the utility model, the sealing pin assembly module 400 includes a fixed seat 410, an X-axis moving mechanism 420, a Z-axis moving mechanism 430 and a plurality of feeding mechanisms 440; for the convenience of understanding, the X-axis, Y-axis and Z-axis are as shown in Figure 3 and Figure 4 The X-axis moving mechanism 420 includes an X-axis drive (not shown in the figure) and an X-axis moving plate 421, the X-axis drive is installed on the fixed seat 410, the X-axis moving plate 421 is in transmission connection with the X-axis drive, and the X-axis moving plate 421 is in sliding connection with the fixed seat 410. The X-axis moving plate 421 can reciprocate on the fixed seat 410 along the X-axis under the drive of the X-axis drive, so as to realize the transportation of the sealing pin from the pin supply mechanism (not shown in the figure) to the sealing pin assembly module 400 station where the battery 10 is located.

[0047] Please refer to Figure 3 and Figure 4 The fixed seat 410 is the installation fixed position of the entire sealing pin assembly module 400, and its structure is not limited, and is adaptively designed according to the working space and the preset working range of the sealing pin assembly module 400. The X-axis drive provides the power for the movement of the X-axis moving mechanism 420, for example, can be a motor plus a transmission system, a linear motor, an air cylinder or an oil cylinder, and the like, which is not limited. In the embodiment, the X-axis drive adopts the mode of motor plus transmission system, and the transmission system can be a screw nut pair, a gear rack or a worm gear, and the like. Preferably, in order to stabilize the sliding connection between the X-axis moving plate 421 and the fixed seat 410, the X-axis moving plate 421 and the fixed seat 410 are connected through a guide rail and a sliding block.

[0048] Please refer to Figures 3 to 4The Z-axis moving mechanism 430 comprises a Z-axis drive 431 and a Z-axis moving plate 432. The Z-axis drive 431 is arranged on the X-axis moving plate 421, and the Z-axis moving plate 432 is in transmission connection with the Z-axis drive 431 and in sliding connection with the X-axis moving plate 421. The Z-axis drive 431 provides power for the movement of the Z-axis moving mechanism 430, for example, a motor and a transmission system, a linear motor, an air cylinder or an oil cylinder, and the like, and the present application is not limited to this. In the present embodiment, the Z-axis drive 431 adopts a cylinder transmission. Preferably, in order to improve the stability of the sliding connection between the Z-axis moving plate 432 and the X-axis moving plate 421, the X-axis moving plate 421 and the Z-axis moving plate 432 are connected by a guide rail and a sliding block. The Z-axis moving mechanism 430 is integrally installed on the X-axis moving plate 421, and can realize linear reciprocating movement along the X-axis with the X-axis moving plate 421.

[0049] Further, please refer to Figure 3 In order to improve the efficiency of the upper sealing nail, a plurality of feeding mechanisms 440 are arranged on the Z-axis moving plate 432. The number of the feeding mechanisms 440 is not limited, and can be any value greater than or equal to 1, which can be adaptively set according to the beat requirement of the battery 10 production line and the working space. In the present embodiment, the number of the feeding mechanisms 440 is 4.

[0050] The control system is in control connection with the X-axis moving mechanism 420, the Z-axis moving mechanism 430 and the plurality of feeding mechanisms 440. Specifically, the control system can control the X-axis moving mechanism 420, the Z-axis moving mechanism 430 and the plurality of feeding mechanisms 440 respectively through the processes of image acquisition and processing, characteristic parameter acquisition, offset calculation and assembly control instruction sending, so as to realize the process of automatic feeding. The design of the control system can refer to the prior art, and will not be described here.

[0051] Please refer to Figure 3Further, the feeding mechanism 440 comprises an X-axis fine adjustment device 442, a Y-axis fine adjustment device 441 and a suction nozzle 443. In an embodiment, the Y-axis fine adjustment device 441 is connected to the Z-axis moving plate 432, and the X-axis fine adjustment device 442 is arranged on the Y-axis fine adjustment device 441. In another embodiment, the X-axis fine adjustment device 442 is connected to the Z-axis moving plate 432, and the X-axis fine adjustment device 442 is arranged on the Y-axis fine adjustment device 441. The suction nozzle 443 is arranged on the X-axis fine adjustment device 442. The suction nozzle 443 is used for sucking and placing the sealing nails. The suction nozzle 443 can be directly connected to the Y-axis fine adjustment device 441 or the X-axis fine adjustment device 442, or indirectly connected to the Y-axis fine adjustment device 441 or the X-axis fine adjustment device 442 through a suction nozzle 443 mounting member, and no limitation is made to this. The Y-axis fine adjustment device 441 can have various structural forms, such as a cam structure, an eccentric wheel structure, a nut and screw structure or a gear and rack structure, as long as it can drive the suction nozzle 443 to move along the Y-axis. The X-axis fine adjustment device 442 can have various structural forms, such as a cam structure, an eccentric wheel structure, a nut and screw structure or a gear and rack structure, as long as it can drive the Y-axis fine adjustment device 441 to move along the X-axis. The feeding mechanism 440 can realize the synchronous movement of the suction nozzle 443 along the X-axis and the Y-axis, improve the fine adjustment efficiency, and reduce the space occupation due to the compact structure. Therefore, multiple feeding mechanisms 440 can be arranged on the Y-axis moving plate to realize the simultaneous assembly of multiple sealing nails, improve the efficiency of assembling the sealing nails, and further meet the high beat requirement of the battery 10 production line.

[0052] Please refer to Figures 5 to 9In the sealing pin assembly module 400 example, the Y-axis fine adjustment device 441 includes a Y-axis fine adjustment drive 4411, a Y-axis fine adjustment mounting plate 4412, a Y-drive shaft 4413, a Y-axis eccentric assembly 4414, a Y-axis fine adjustment moving plate 4415 and a Y-axis fine adjustment sliding assembly 4416; it should be noted that in order to distinguish the eccentric assembly in the Y-axis fine adjustment device 441 and the X-axis fine adjustment device 442, the eccentric assembly of the Y-axis fine adjustment device 441 is named as the Y-axis eccentric assembly 4414, and the eccentric assembly of the X-axis fine adjustment device 442 is named as the X-axis eccentric assembly 4424. The Y-axis fine adjustment mounting plate 4412 is connected with the Z-axis moving plate 432, and the shape and structure of the Y-axis fine adjustment mounting plate 4412 are not limited, which can be any structure capable of mounting and fixing other parts of the Y-axis fine adjustment device 441, the Y-axis fine adjustment drive 4411 is arranged on the Y-axis fine adjustment mounting plate 4412, the Y-drive shaft 4413 is in transmission connection with the Y-axis fine adjustment drive 4411 and penetrates through the Y-axis fine adjustment mounting plate 4412, and the Y-axis eccentric assembly 4414 is connected with the Y-drive shaft 4413. The technical scheme adopts the Y-axis eccentric assembly 4414 to act on the Y-axis fine adjustment moving plate 4415 to realize the movement of the Y-axis fine adjustment moving plate 4415, so that the Y-axis fine adjustment drive 4411 adopts a motor, the setting of the Y-axis eccentric assembly 4414 simplifies the structure and reduces the demand for space, and under the same space condition, a plurality of feeding mechanisms 440 can be arranged to improve the efficiency of feeding the sealing pins.

[0053] Preferably, in order to stabilize and direct the sliding connection between the Y-axis moving plate and the fixed seat 410, the Y-axis fine adjustment sliding assembly 4416 is arranged on the side opposite to the Y-axis fine adjustment drive 4411 of the Y-axis fine adjustment mounting plate 4412. Specifically, the Y-axis fine adjustment sliding assembly 4416 includes a first guide rail 44161 connected to the Y-axis fine adjustment mounting plate 4412 and a first sliding block 44162 connected to the Y-axis fine adjustment moving plate 4415, the length direction of the first sliding block 44162 is parallel to the Y-axis, the Y-axis fine adjustment moving plate 4415 is in sliding connection with the Y-axis fine adjustment mounting plate 4412 through the Y-axis fine adjustment sliding assembly 4416, and the Y-axis fine adjustment moving plate 4415 can slide relative to the X-axis fine adjustment mounting plate 4422 with the rotation of the Y-axis eccentric assembly 4414. It should be noted that the Y-axis eccentric assembly 4414 has various forms, which will be described in detail in the following three specific embodiments.

[0054] Please refer to Figure 6 and Figure 7In the battery production line example of the utility model, the Y-axis eccentric assembly 4414 includes a first cam 44141, the first cam 44141 can realize the movement of the follower according to a certain trajectory through a specific profile curve, a first through hole 44151 is arranged on the Y-axis fine adjustment moving plate 4415, the first through hole 44151 is a long circular hole or a rectangular hole, the length direction of the first through hole 44151 is perpendicular to the moving direction of the Y-axis fine adjustment moving plate 4415, the setting can make the length direction of the first through hole 44151 can accommodate the protruding part of the first cam 44141, so as to realize that the Y-axis fine adjustment moving plate 4415 cannot move in the direction perpendicular to the Y-axis; the first cam 44141 is connected with the first through hole 44151, the part of the maximum radial dimension of the first cam 44141 is gap-connected with the first through hole 44151 in the width direction of the first through hole 44151, the setting can realize that the Y-axis fine adjustment moving plate 4415 can only move in the direction of the Y-axis under the action of the first cam 44141, and the gap connection can realize the relative rotation between the first cam 44141 and the first through hole 44151, and can weaken the friction between the first cam 44141 and the first through hole 44151.

[0055] Please refer to Figure 6 and Figure 8In another example of the battery production line of the utility model, the Y-axis eccentric assembly 4414 comprises a first eccentric wheel 44142 and a first bearing 44143 sleeved on the first eccentric wheel 44142, it is to be explained that the first eccentric wheel 44142 is connected to the Y-drive shaft 4413, the first eccentric wheel 44142 and the Y-drive shaft 4413 can be integrally formed or separately machined and then fixedly connected, the Y-axis fine adjustment moving plate 4415 can move in the X-axis and Y-axis directions under the action of the first eccentric wheel 44142. Further, the Y-axis fine adjustment moving plate 4415 is provided with a first through hole 44151, the first through hole 44151 is a long circular hole or a rectangular hole, the length direction of the first through hole 44151 is perpendicular to the moving direction of the Y-axis fine adjustment moving plate 4415, this arrangement can make the length direction of the first through hole 44151 can accommodate the eccentric part of the first eccentric wheel 44142, so as to realize that the Y-axis fine adjustment moving plate 4415 cannot move in the direction perpendicular to the Y-axis, the first bearing 44143 is connected with the first through hole 44151, the first bearing 44143 can reduce the friction between the first eccentric wheel 44142 and the first through hole 44151, reduce noise and improve service life. The first bearing 44143 is gap-connected with the first through hole 44151 in the width direction, this arrangement can realize that the Y-axis fine adjustment moving plate 4415 can only move in the direction of the Y-axis under the action of the first eccentric wheel 44142, and the gap connection can realize the relative rotation between the first bearing 44143 and the first through hole 44151, and can weaken the friction between the first bearing 44143 and the first through hole 44151.

[0056] Please refer to Figures 6 to 9In the battery production line of the utility model, the Y-axis eccentric assembly 4414 includes a first eccentric bearing 44144, the first eccentric bearing 44144 integrates the functions of an eccentric wheel and a bearing, and can enable the Y-axis fine adjustment moving plate 4415 to move in the X-axis and Y-axis directions. The first eccentric bearing 44144 is sleeved on the Y-drive shaft 4413, the Y-axis fine adjustment moving plate 4415 is provided with a first through hole 44151, the first through hole 44151 is a long circular hole or a rectangular hole, the length direction of the first through hole 44151 is perpendicular to the moving direction of the Y-axis fine adjustment moving plate 4415, and the arrangement can enable the length direction of the first through hole 44151 to accommodate the eccentric part of the first eccentric bearing 44144, so that the Y-axis fine adjustment moving plate 4415 cannot move in the direction perpendicular to the Y-axis, the first eccentric bearing 44144 is connected with the first through hole 44151 in a matched mode, the first eccentric bearing 44144 can also reduce the friction between the first eccentric bearing 44144 and the first through hole 44151, reduce noise, and improve the service life. The first eccentric bearing 44144 is connected with the first through hole 44151 in a clearance fit mode in the width direction of the first through hole 44151, the arrangement can enable the Y-axis fine adjustment moving plate 4415 to move only in the Y-axis direction under the action of the first eccentric bearing 44144, and the clearance fit mode can enable the first eccentric bearing 44144 and the first through hole 44151 to rotate relative to each other and weaken the friction between the first eccentric bearing 44144 and the first through hole 44151.

[0057] Please refer to Figures 5 to 9 In the battery production line of the utility model, the X-axis fine adjustment device 442 includes an X-axis fine adjustment drive 4421, an X-axis fine adjustment mounting plate 4422, an X-drive shaft 4423, an X-axis eccentric assembly 4424, an X-axis fine adjustment moving plate 4425 and an X-axis fine adjustment sliding assembly 4426. The X-axis fine adjustment mounting plate 4422 is arranged on the Y-axis fine adjustment moving plate 4415, the shape and structure of the X-axis fine adjustment mounting plate 4422 are not limited, and the X-axis fine adjustment mounting plate 4422 can be any structure that can mount and fix other parts of the X-axis fine adjustment device 442. The X-axis fine adjustment drive 4421 is arranged on the X-axis fine adjustment mounting plate 4422 and located on the same side as the Y-axis fine adjustment moving plate 4415. The X-drive shaft 4423 is in transmission connection with the X-axis fine adjustment drive 4421 and penetrates through the X-axis fine adjustment mounting plate 4422. The X-axis eccentric assembly 4424 is connected to the X-drive shaft 4423. In this technical solution, the X-axis fine adjustment drive 4421 adopts a motor, and the X-axis eccentric assembly 4424 is arranged to act on the X-axis fine adjustment moving plate 4425 to enable the X-axis fine adjustment moving plate 4425 to move. Therefore, the X-axis fine adjustment drive 4421 adopts a motor, the arrangement of the X-axis eccentric assembly 4424 simplifies the structure and reduces the demand for space. Under the same space condition, multiple feeding mechanisms 440 can be arranged to improve the efficiency of feeding the sealing nails.

[0058] Preferably, in order to stabilize and orientate the sliding connection between the X-axis moving plate 421 and the X-axis fine adjustment mounting plate 4422, the X-axis fine adjustment sliding assembly 4426 is arranged on the side opposite to the X-axis fine adjustment mounting plate 4422 relative to the X-axis fine adjustment drive 4421, and specifically, the X-axis fine adjustment sliding assembly 4426 comprises a second guide rail 44261 connected to the X-axis fine adjustment mounting plate 4422 and a second sliding block 44262 connected to the X-axis fine adjustment moving plate 4425, the length direction of the second sliding block 44262 is parallel to the X-axis, the X-axis fine adjustment moving plate 4425 is slidingly connected to the X-axis fine adjustment mounting plate 4422 through the X-axis fine adjustment sliding assembly 4426, and the X-axis fine adjustment moving plate 4425 can slide relative to the X-axis fine adjustment mounting plate 4422 with the rotation of the X-axis eccentric assembly 4424. It should be noted that the X-axis eccentric assembly 4424 has various forms, which will be described in detail in three specific embodiments.

[0059] Referring to Figure 6 and Figure 7 In an example of the battery production line of the utility model, the X-axis eccentric assembly 4424 comprises a second cam 44241, the second cam 44241 can drive the follower to move along a certain trajectory through a specific profile curve, the X-axis fine adjustment moving plate 4425 is provided with a second through hole 44251, the second through hole 44251 is a long circular hole or a rectangular hole, the length direction of the second through hole 44251 is perpendicular to the moving direction of the X-axis fine adjustment moving plate 4425, and this arrangement can make the length direction of the second through hole 44251 can accommodate the protruding part of the second cam 44241, so as to realize that the X-axis fine adjustment moving plate 4425 cannot move in the direction perpendicular to the X-axis; the second cam 44241 is connected with the second through hole 44251 in a matched manner, and the part with the maximum radial dimension of the second cam 44241 is matched with the second through hole 44251 in a clearance fit in the width direction of the second through hole 44251, and this arrangement can realize that the X-axis fine adjustment moving plate 4425 can only move along the direction of the X-axis under the action of the second cam 44241, and the clearance fit can realize the relative rotation between the second cam 44241 and the second through hole 44251 and weaken the friction between the second cam 44241 and the second through hole 44251.

[0060] Referring to Figure 6 and Figure 8In another example of the battery production line of the utility model, the X-axis eccentric assembly 4424 comprises a second eccentric wheel 44242 and a second bearing 44243 sleeved on the second eccentric wheel 44242, it is to be explained that the second eccentric wheel 44242 is connected to the X driving shaft 4423, the second eccentric wheel 44242 and the X driving shaft 4423 can be integrally formed or separately machined and then fixedly connected, the X-axis fine adjustment moving plate 4425 can move in the X-axis and Y-axis directions under the action of the second eccentric wheel 44242. Further, the X-axis fine adjustment moving plate 4425 is provided with a second through hole 44251, the second through hole 44251 is a long circular hole or a rectangular hole, the length direction of the second through hole 44251 is perpendicular to the moving direction of the X-axis fine adjustment moving plate 4425, and the length direction of the second through hole 44251 can accommodate the eccentric part of the second eccentric wheel 44242, so that the X-axis fine adjustment moving plate 4425 cannot move in the direction perpendicular to the X-axis, the second bearing 44243 is connected with the second through hole 44251, the second bearing 44243 can reduce the friction between the second eccentric wheel 44242 and the second through hole 44251, reduce noise and improve service life. The second bearing 44243 is gap-connected with the second through hole 44251 in the width direction, and the X-axis fine adjustment moving plate 4425 can only move in the X-axis direction under the action of the second eccentric wheel 44242, and the gap connection can realize the relative rotation between the second bearing 44243 and the second through hole 44251 and weaken the friction between the second bearing 44243 and the second through hole 44251.

[0061] Please refer to Figure 6 and Figure 9In the battery production line example of the utility model, the X-axis eccentric assembly 4424 includes a second eccentric bearing 44244, the second eccentric bearing 44244 integrates the functions of an eccentric wheel and a bearing, and can enable the X-axis fine adjustment moving plate 4425 to move in the X-axis and Y-axis directions. The second eccentric bearing 44244 is sleeved on the X-drive shaft 4423, the X-axis fine adjustment moving plate 4425 is provided with a second through hole 44251, the second through hole 44251 is a long circular hole or a rectangular hole, the length direction of the second through hole 44251 is perpendicular to the moving direction of the X-axis fine adjustment moving plate 4425, and the arrangement can enable the length direction of the second through hole 44251 to accommodate the eccentric part of the second eccentric bearing 44244, so that the X-axis fine adjustment moving plate 4425 cannot move in the direction perpendicular to the X-axis, the second eccentric bearing 44244 is connected with the second through hole 44251 in a matched mode, the second eccentric bearing 44244 can also reduce the friction between the second eccentric wheel 44242 and the second through hole 44251, reduce noise, and improve the service life. The second eccentric wheel 44242 is gap-connected with the second through hole 44251 in the width direction of the second through hole 44251, and the arrangement can enable the X-axis fine adjustment moving plate 4425 to move only in the direction of the X-axis under the action of the second eccentric bearing 44244, and the gap connection can enable the second eccentric bearing 44244 and the second through hole 44251 to rotate relative to each other and weaken the friction between the second eccentric bearing 44244 and the second through hole 44251.

[0062] Please refer to Figure 3 and Figure 4 In the battery production line example of the utility model, the X-axis moving plate 421 is provided with a limiting part 433 for limiting the movement of the Z-axis moving mechanism 430 in the Z-axis direction, the structure of the limiting part 433 is not limited, in some embodiments, the limiting part 433 is a physical limiting part 433, such as a mechanical stopper, and the physical limiting part 433 prevents the further movement of the moving plate by contacting the moving plate; in other embodiments, the limiting part 433 is an electronic limiting part 433, which is limited by the position set in the software, specifically, the electronic limiting part 433 sends a stop instruction when the Z-axis moving mechanism 430 reaches the set position through the control system. The limiting part 433 can improve the accuracy and automation degree of the last step of placing the sealing nail into the liquid injection hole in the sealing nail process, so as to improve the efficiency.

[0063] Please refer to Figure 1 and Figure 2In the battery production line example of the utility model, downstream of the visual detection module 600 is further provided with a material taking module 1000 for taking out unqualified batteries 10. Specifically, the material taking module 1000 can be realized by a mechanical hand, the visual detection module 600 marks the unqualified batteries 10, and feeds back the detection result to the control system, the control system controls the material taking module 1000 to take out the marked batteries 10, preferably, one side of the material taking module 1000 is provided with a storage module 1400 of unqualified batteries 10, so as to temporarily store the unqualified batteries 10, and then the unqualified batteries 10 are uniformly processed.

[0064] Please refer to Figure 1 and Figure 2 In the battery production line example of the utility model, the marking module 1500 comprises a display 1510 for displaying the image of the battery 10 collected by the image collection module 700, so as to more clearly check the details and potential defects of the battery 10, and further comprises a first button (not shown in the figure) for marking the unqualified battery 10, the first button can be a physical button or a virtual button on the operation interface, and the utility model is not limited thereto. Since there are four batteries 10 in one tray 20, the probability of all being unqualified batteries 10 is extremely low, so it is necessary to take out the unqualified batteries 10 in the tray 20, and then combine the qualified batteries 10 and the tray 20 to return to the main transmission line 110 for the next process, so the branch transmission line 120 is arranged in parallel with the main transmission line 110, and it can be understood that the branch of the branch transmission line 120 and the main transmission line 110 can be realized by a pneumatic baffle, a mechanical arm or other automatic devices.

[0065] Please refer to Figure 1 and Figure 2 The unqualified batteries 10 marked by the first button flow to the branch transmission line 120, specifically, the control system detects the signal generated when the first button is pressed, indicating that the battery 10 is an unqualified battery 10, realizing the marking of the unqualified battery 10 which is not recognized by the visual detection module 600, further, the control system controls the tray 20 carrying the unqualified battery 10 to branch from the main transmission line 110 and flow into the branch transmission line 120, at the same time, the unqualified batteries 10 are picked out from the tray 20 by artificial or mechanical hand, and the remaining qualified batteries 10 and the tray 20 are combined to return to the main transmission line 110. Preferably, an artificial visual inspection battery pull belt 1100 is arranged near the branch transmission line 120, for collecting the picked out unqualified batteries 10 for the next step processing. The artificial visual inspection battery pull belt 1100 can be arranged according to the existing structure, and the utility model is not limited thereto.

[0066] In the battery production line example of the utility model, please refer to Figure 1 and Figure 2The main transmission line 110 includes a first segment 111 and a second segment 112 connected end to end, that is, the first segment 111 and the second segment 112 form a closed transmission line, the first segment 111 passes through the sealing nail assembly module 400, the sealing nail welding module 500, the visual detection module 600 and the image acquisition module 700, and the second segment 112 passes through the helium detection module 800. This arrangement can make the arrangement of the sealing nail assembly module 400, the sealing nail welding module 500, the visual detection module 600, the image acquisition module 700 and the helium detection module 800 more compact, the transmission efficiency of the main transmission line 110 is higher, and the production rhythm of the battery production line is faster.

[0067] In order to optimize the accuracy and comprehensiveness of the detection of the visual detection module 600, improve the detection efficiency of the visual detection module 600 and reduce the workload of manual work, before the battery production line is put into production, the visual detection module 600 needs to be trained to recognize defective batteries 10 by using AI, and a large amount of product training data needs to be accumulated. In order to train the visual detection module 600 first, improve the identification accuracy of unqualified batteries 10. The discarded training batteries 10 are placed in each tray 20, and a second button is also provided for the operator to display the images collected by the image acquisition module 700 for marking. Generally, the discarded training batteries 10 that are not recognized by the visual detection module 600 are marked. The second button can be a physical button or a virtual button on the operation interface, which is not limited.

[0068] Further, the training battery 10 that is not recognized by the visual detection module 600 needs to be re-injected into the battery production line for image recognition model training. Please refer to Figure 1 and Figure 2 The unqualified battery 10 marked by the second button is transmitted back to the first segment 111 through the second segment 112, and continues to pass through the code scanning module 200, the visual detection module 600 and the image acquisition module 700 and then returns to the second segment 112. Specifically, since the discarded training battery 10 passes through the code scanning module 200 for the second time, when the control system recognizes that it is a re-injected battery 10 through the code scanning module 200, the image acquisition module 700 collects the image and / or displays the image collected by the image acquisition module 700 as the training data of the discarded battery 10 for the re-injected battery 10 (i.e. the discarded training battery 10) to train the image recognition model of the unqualified battery 10. The code scanning module 200 in the embodiment can use a code scanning gun. Each discarded training battery 10 is provided with an identification code.

[0069] Alternatively, since the re-injected battery 10 does not need to pass through the processes of cleaning, assembling the sealing nail and welding the sealing nail, in order to avoid repeated operations, in an example of the battery production line of the utility model, please refer to Figure 1The mechanism of each process such as the sealing pin assembling module 400 between the code scanning module 200 and the visual detection module 600 no longer performs corresponding work.

[0070] The unqualified battery 10 is judged as a battery 10 for training by the code scanning module 200, and then detected by the visual detection module 600. If the visual detection module 600 still detects the battery 10 as a qualified battery 10, the battery 10 continues to collect data by the image collection module 700 and upload. The above unqualified battery 10 continues to be transmitted to the second section 112 and the first section 111 in turn, and a new round of training is performed until the visual detection module 600 can detect that the battery 10 is an unqualified battery, and the training is completed. If the unqualified battery is detected by the visual detection module 600 after passing through the code scanning module 200 and the visual detection module 600, the training is completed. The above setting reduces the labor cost and improves the training efficiency.

[0071] Since the battery 10 is placed in the tray 20 for transmission, the qualified product after helium detection needs to be taken out from the tray 20 for the next process. In the battery production line example of the present application, please refer to Figure 1 and Figure 2 The battery production line further comprises a feeding module 900, and a transfer mechanism 810 is arranged between the feeding module 900 and the helium detection module 800. The transfer mechanism 810 is used to transfer the tray 20 and the battery 10 in the tray 20 after helium detection to the feeding module 900. The transfer mechanism 810 can refer to the existing structure, and will not be described again. The feeding module 900 is used to take out the qualified battery 10 from the transfer mechanism 810. The qualified battery 10 after being taken out can be collected or sent to the next process station, which is not limited. Further, a helium detection battery pull belt 1200 is arranged near the helium detection module 800, which is used to collect the unqualified battery 10 sorted out for next step processing. The helium detection battery pull belt 1200 can be arranged by referring to the existing structure, and will not be described again.

[0072] Considering that the tray 20 after taking out the battery 10 needs to flow back to the previous process to reload the battery 10 to be welded with the sealing pin, in the battery production line example of the present application, please refer to Figure 1 and Figure 2 The transmission module 100 further comprises a tray backflow transmission line 140 for transmitting the empty tray 20. The tray backflow transmission line 140 connects the feeding module 900 and the start end of the first section 111.

[0073] It can be understood that the tray reflow conveying line 140 can have various forms, such as a belt line, a plate chain line, a multiple-speed chain, a mesh belt line, a hanging line, and a roller line, as long as the battery 10 can be conveyed, and the form is not limited. The structure of the tray reflow conveying line 140 generally includes a traction member, a bearing member, a driving device, a tensioning device, a turning device, and a supporting member, and the like, which will not be described here.

[0074] Please refer to Figure 1 and Figure 2 In an example of the battery production line of the utility model, the tray reflow conveying line 140 includes a first upward reflow line 141, a downward reflow line 142, and a second upward reflow line 143. The first upward reflow line 141 is connected to the terminal end of the main conveying line 110, and the second upward reflow line 143 is connected to the starting end of the first section 111. The first upward reflow line 141 and the downward reflow line 142 are provided with a first elevator 144, and the downward reflow line 142 and the second upward reflow line 143 are provided with a second elevator 145. Specifically, the empty tray 20 is conveyed to the first elevator 144 along the first upward reflow line 141, then falls to the downward reflow line 142 along the first elevator 144, and during the conveying process of the downward reflow line 142, the battery 10 completed in the previous electrolyte injection process is placed in the tray 20. The loaded tray 20 is conveyed to the second elevator 145 along the downward reflow line 142, and then is lifted to the second upward reflow line 143 by the second elevator 145, and is further conveyed to the starting end of the battery production line of the utility model, to start a new round of welding sealing pin and helium detection process. In this embodiment, the second upward reflow line 143 converges to the second section 112 after the second elevator 145, that is, the second upward reflow line 143 belongs to a part of the second section 112. In other embodiments, the second upward reflow line 143 can be parallel to the second section 112, and both are connected to the first section 111. It should be noted that Figure 1 only the positions of the first elevator 144 and the second elevator 145 are shown, and the structure is not shown Figure 10 is a structural schematic view of one embodiment of the first elevator 144 and the second elevator 145.

[0075] Please refer to Figure 1 and Figure 2 In an example of the battery production line of the utility model, the maintenance passage entrance and exit 1300 is provided to facilitate the operator to enter to maintain and repair the inside of the assembly line.

[0076] The utility model discloses a battery production line, be provided with the branch transmission line in parallel with main transmission line between the mark module and helium detection module, namely branch transmission line as a branch, from the main transmission line after the detection of mark module separates, and the tray that holds the battery of sealing nail welding unqualified flows into branch transmission line and carries out transmission, and the tray can carry out the operation such as manual or mechanical sorting out unqualified battery in the process of branch transmission line transmission, after that, the qualified battery is with tray and is incorporated into main transmission line and carries out subsequent process. Realize the transmission of qualified battery and the sorting of unqualified battery can carry out simultaneously, has reduced the influence and limitation of unqualified battery sorting to production rhythm, has improved work efficiency. Therefore, the utility model effectively overcomes some practical problems in the prior art and has high utilization value and use significance. The above embodiment only illustratively explains the principle and effect of the utility model, and is not used for limiting the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art under the spirit and technical concept disclosed by the utility model still should be covered by the claims of the utility model.

Claims

1. A battery production line, characterized by, The battery production line comprises a conveying module for conveying the batteries, the conveying module comprising a main conveying line and a branch conveying line, a plurality of the batteries being placed in a tray for conveying, and a plurality of the trays being arranged along a conveying path of the main conveying line in sequence, and the battery production line further comprises: a sealing nail assembling module for assembling a sealing nail to a liquid injection hole of the battery; a sealing nail welding module for welding the sealing nail to the liquid injection hole; a visual inspection module for inspecting the welding quality of the sealing nail and marking the battery that fails to meet the quality requirement; an image acquisition module for acquiring an image of the battery, the image comprising at least the sealing nail, the liquid injection hole, and a welding seam between the sealing nail and the liquid injection hole; a helium detection module for detecting the sealing quality of the battery whose sealing nail welding quality is qualified; wherein the battery production line further comprises a marking module for receiving a marking signal and marking the battery that fails to meet the quality requirement or the tray containing the battery that fails to meet the quality requirement; the branch conveying line is located between the image acquisition module and the helium detection module and is parallel to the main conveying line, and is used for conveying a predetermined tray, the predetermined tray being marked by the marking module or containing a marked battery, the battery that fails to meet the quality requirement being sorted out on the branch conveying line, and the battery that meets the quality requirement being returned to the main conveying line with the tray and being conveyed to the helium detection module.

2. The battery line of claim 1, wherein, The sealing nail assembling module comprises: a fixing seat; an X-axis moving mechanism comprising an X-axis drive and an X-axis moving plate, the X-axis drive being installed on the fixing seat, the X-axis moving plate being in transmission connection with the X-axis drive, and the X-axis moving plate being in sliding connection with the fixing seat; a Z-axis moving mechanism comprising a Z-axis drive and a Z-axis moving plate, the Z-axis drive being arranged on the X-axis moving plate, the Z-axis moving plate being in transmission connection with the Z-axis drive, and the Z-axis moving plate being in sliding connection with the X-axis moving plate; a plurality of feeding mechanisms arranged on the Z-axis moving plate, the feeding mechanism comprising an X-axis fine adjustment device, a Y-axis fine adjustment device, and a suction nozzle, the Y-axis fine adjustment device being connected to the Z-axis moving plate, the X-axis fine adjustment device being arranged on the Y-axis fine adjustment device, and the suction nozzle being arranged on the X-axis fine adjustment device; or the X-axis fine adjustment device being connected to the Z-axis moving plate, the Y-axis fine adjustment device being arranged on the X-axis fine adjustment device, and the suction nozzle being arranged on the Y-axis fine adjustment device; a control system being in electrical connection with the X-axis moving mechanism, the Z-axis moving mechanism, and the plurality of feeding mechanisms.

3. The battery line of claim 2, wherein, The Y-axis fine adjustment device comprises: a Y-axis fine adjustment mounting plate connected to the Z-axis moving plate; a Y-axis fine adjustment drive arranged on the Y-axis fine adjustment mounting plate; a Y-drive shaft in transmission connection with the Y-axis fine adjustment drive and penetrating through the Y-axis fine adjustment mounting plate; a Y-axis eccentric assembly in transmission connection with the Y-drive shaft; a Y-axis fine adjustment moving plate in sliding connection with the Y-axis fine adjustment mounting plate and capable of sliding relative to the Y-axis fine adjustment mounting plate with the rotation of the Y-axis eccentric assembly.

4. The battery production line of claim 3, wherein, The X-axis fine adjustment device comprises: an X-axis fine adjustment mounting plate arranged on the Y-axis fine adjustment moving plate; an X-axis fine adjustment drive arranged on the X-axis fine adjustment mounting plate and located on the same side of the Y-axis fine adjustment moving plate. An X driving shaft is connected with the X fine adjustment driving transmission and passes through the X fine adjustment mounting plate; An X shaft eccentric assembly is connected with the X driving shaft; An X shaft fine adjustment moving plate is slidably connected with the X fine adjustment mounting plate and can slide relative to the X fine adjustment mounting plate with the rotation of the X shaft eccentric assembly.

5. The battery line of claim 1, wherein, The marking module comprises a display and a first button for marking unqualified batteries that are not identified by the visual detection module, and the tray where the unqualified batteries marked by the first button flow to the branch conveying line, and the display is used to display the images of the batteries collected by the image collection module.

6. The battery line of claim 1, wherein, The main conveying line comprises a first segment and a second segment connected with each other, the first segment passes through the sealing pin assembly module, the sealing pin welding module, the visual detection module and the image collection module, and the second segment passes through the helium detection module.

7. The battery line of claim 6, wherein, An identification code is arranged at a corresponding position of each battery or tray, the marking module comprises a second button for marking unqualified batteries that are not identified by the visual detection module, a code scanning module is further arranged upstream of the sealing pin assembly module, the first segment passes through the code scanning module, the unqualified batteries marked by the second button are conveyed back to the first segment through the second segment, and continue to pass through the code scanning module, the visual detection module and the image collection module and return to the second segment, or pass through the code scanning module and the visual detection module and are detected as unqualified batteries by the visual detection module.

8. The battery line of claim 6, wherein, The battery production line further comprises a discharging module, the discharging module is used to take out the batteries qualified by the helium detection, a transfer mechanism is arranged between the discharging module and the helium detection module, and the transfer mechanism is used to transfer the tray and the batteries in the tray after the helium detection to the discharging module.

9. The battery line of claim 8, wherein, The conveying module further comprises a tray backflow conveying line for conveying empty trays, the tray backflow conveying line is connected with the discharging module and the beginning end of the first segment, and the tray backflow conveying line passes through the feeding station to feed the batteries to be assembled into the tray.

10. The battery line of claim 9, wherein, The tray backflow conveying line comprises a first upward backflow line, a downward backflow line and a second upward backflow line, the first upward backflow line is connected with the discharging module, the second upward backflow line is connected with the beginning end of the first segment, a first elevator is arranged between the first upward backflow line and the downward backflow line, and a second elevator is arranged between the downward backflow line and the second upward backflow line.

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